XML to JSON Formatter

Convert XML to JSON instantly in your browser. Free, no upload, formats and validates output with custom indentation and attribute controls.

In-Browser(Zero Server Uploads)

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Converting XML Trees to Structured JSON Data

Client-Side DOM Parsing

Zero Server Transmission: Unlike online converters that post proprietary XML configurations, API tokens, or user payloads to remote servers, Pexlii executes entirely in your browser's local JavaScript runtime.

Extensible Markup Language (XML) remains the backbone of legacy enterprise applications, SOAP web services, RSS feeds, Android resource layouts, and financial messaging protocols. However, modern full-stack web applications and RESTful/GraphQL microservices depend almost exclusively on JavaScript Object Notation (JSON) for data interchange. Converting XML schemas into structured JSON objects allows developers to ingest, deserialize, and manipulate complex hierarchical data with minimal boilerplate.

A major technical challenge in XML-to-JSON conversion is preserving XML attributes without collisions against child element names. Pexlii solves this by providing configurable attribute handling—prefixing attributes with the industry-standard @ symbol (such as @id or @version) while preserving element text nodes inside #text keys. Repeated child tags are automatically bundled into clean JavaScript arrays, and numeric or boolean values can be optionally parsed from string primitives into native JavaScript types.

Our interactive converter provides immediate real-time feedback with syntax error highlighting for unmatched closing tags, missing quotes, or illegal entity characters, letting you repair malformed XML on the fly before exporting production-ready JSON.

How to Use XML to JSON Formatter

Paste XML into the input editor.

Run the conversion and address any reported XML syntax errors.

Review the generated JSON structure, especially attributes and repeated elements.

Copy or download the formatted JSON output.

Key Capabilities

Real-time XML parsing powered by native browser DOMParser

Custom indentation formatting (2 spaces, 4 spaces, or minified JSON)

Smart attribute prefixing (@attribute) and automatic type casting for numbers/booleans

Live syntax error diagnostics with line numbers and character positions

One-click JSON clipboard copy and .json file download

100% private in-browser transformation—sensitive XML payloads never leave your machine

Application Scenarios

Converting legacy SOAP API responses and WSDL definitions into RESTful JSON models

Transforming XML configuration files, Android manifests, and RSS feeds into JSON

Formatting and validating complex XML payloads before ingesting into NoSQL databases

Stripping XML boilerplate and converting tag hierarchies into lightweight JSON objects

Frequently Asked Questions about XML to JSON Formatter

How does the XML to JSON converter handle attributes?

Attributes on XML elements are extracted and prefixed with '@' (e.g. '@id': '101') so they never collide with child tags having the same name. If an element has both attributes and raw text, the text is mapped to a '#text' property.

Is my XML payload sent to any external server?

Can this tool format and pretty-print malformed XML?